Pretreatment of corn stover using low-moisture anhydrous ammonia (LMAA) process
- Authors
- Yoo, Chang Geun; Nghiem, Nhuan P.; Hicks, Kevin B.; Kim, Tae Hyun
- Issue Date
- Nov-2011
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Ammoniation; Lignocellulosic biomass; Ethanol; Simultaneous saccharification and cofermentation (SSCF); Pretreatment
- Citation
- BIORESOURCE TECHNOLOGY, v.102, no.21, pp.10028 - 10034
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIORESOURCE TECHNOLOGY
- Volume
- 102
- Number
- 21
- Start Page
- 10028
- End Page
- 10034
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/36495
- DOI
- 10.1016/j.biortech.2011.08.057
- ISSN
- 0960-8524
- Abstract
- A simple pretreatment method using anhydrous ammonia was developed to minimize water and ammonia inputs for cellulosic ethanol production, termed the low moisture anhydrous ammonia (LMAA) pretreatment. In this method, corn stover with 30-70% moisture was contacted with anhydrous ammonia in a reactor under nearly ambient conditions. After the ammoniation step, biomass was subjected to a simple pretreatment step at moderate temperatures (40-120 degrees C) for 48-144 h. Pretreated biomass was saccharified and fermented without an additional washing step. With 3% glucan loading of LMAA-treated corn stover under best treatment conditions (0.1 g-ammonia + 1.0 g-water per g biomass, 80 degrees C, and 84 h), simultaneous saccharification and cofermentation test resulted in 24.9 g/l (89% of theoretical ethanol yield based on glucan + xylan in corn stover). (C) 2011 Elsevier Ltd. All rights reserved.
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